[diesel_mercedes] Re: HVA/C blower problem cured?

 

I believe the symptoms of bad brushes is that the blower motor will frequently refuse to start unless you start it at the highest/fastest setting, then it will run at any speed once it is going. So if it won't start on low, but will start on high, and then run on low after it gets moving, that could be the brushes. I don't know what car you have this problem with but you can get $100 blowers for the W123s now from most of the online parts houses.

Jim

--- In diesel_mercedes@yahoogroups.com, Aleph93 <aleph93@...> wrote:
>
> No, I haven't changed out the brushes. What are the signs of bad brushes?
> My blower seems to work fine at all speeds, then nothing, pointing to
> the controller.
> Thanks
>
> Rob
>
>

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Re: [diesel_mercedes] Will seats from 86 300SDL fit my 83 300SD?

 

Always an adventure with these cars.

Rob
=
On 7/27/13 3:27 AM, diesel_mercedes@yahoogroups.com wrote:
> Re: Will seats from 86 300SDL fit my 83 300SD?
> Posted by: "CaitlinDean"tinymachine@gmail.com livingliminally
> Date: Fri Jul 26, 2013 6:52 pm ((PDT))
>
> An update for anyone interested...
>
> Turns out the seller is on the list, so I met up with Rodger and we had a bit of an adventure with the seats.
>
> The rear seat in his SDL was indeed the motorized kind, and the bottom of the seat bolts in, whereas my 83 SD take clips. The current backseat also does not clip in properly as it's from a W123 and the spacing is different.
>
> We thought we had the driver's seat figured out, but it was not to be. The bolts lined up just fine, but the wiring was a few inches too short. Rodger gave me a quick intro to splicing wires, so that I could follow up with that later, but when I went to snap the seatbelt in place, it wouldn't fit. The "tongue" end from my SD seemed too big or a different shape and didn't snap into the "receiving" end from the 86 SDL. I wonder if the seatbelts are original to the 300SD.
>
> So Rodger instead, very generously, repaired my two broken springs on my current driver's seat (from a W123 seats, and blue while my interior is brown) so I had a MUCH comfier ride home.
>
> I had a great time being in newbie mode and picking his brain for my upcoming projects...and he sent me away with a great solution for capturing my coolant when I do my drain n fill.
>
> THANK YOU RODGER!
>
> Caitlin in Santa Fe,
> 1983 300SD

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Re: [diesel_mercedes] Re: HVA/C blower problem

 

Thanks Nate.

Your situation sounds different then mine, being that my blower works at
low to high speeds just fine, with the replacement controller. Just
changing out the controller, it went from no air, to air at all speeds.
I'll keep the blower in mind, if there further issues, as I'm sure the
brushes are worn after all these years. I picked up another A/C
controller yesterday at PAP, while getting a few things for my wife's
car, just to keep in the trunk. It looked pretty good, with a nice clean
circuit board, not burned like many are. I won't test it until next
week, as right now the A/C is working great, and I need to drive inland
into the heat this weekend, so don't mess with it.

Rob
'85 300D
Garden Grove, CA
=

On 7/27/13 3:27 AM, diesel_mercedes@yahoogroups.com wrote:
> Re: HVA/C blower problem
> Posted by: "Nate"vwnate1@yahoo.com vwnate1
> Date: Fri Jul 26, 2013 10:51 am ((PDT))
>
>
> Not really sure ;
>
> My blower worked fine and dandy except when it didn't , then it began to not want to run on the low speed where I like it .
>
> So , being nosy I took it all apart and found it not only filthy (normal for any air flow device) but the brushes were only like 4 MM long and the commutator was toast~ it's worn at a 45° angle so I know my new brush kit from Mercedes Source is but a band aid repair .
>
> Once I get a bit caught up in my other works (front end rebuild , two engines , routine stuff too) I'll grab Tom and take a P-A-P tour and find one in better shape , maybe even a low use replacement one .
>
> In general , you will always find the highest wear part , the first to fail so I'd look at the blower motor .
>
> -Nate
> Rob wrote :
>> >
>> >No, I haven't changed out the brushes. What are the signs of bad brushes?
>> >My blower seems to work fine at all speeds, then nothing, pointing to
>> >the controller.
>> >Thanks
>> >
>> >Rob
>> >

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